The theory that life began in the distant past from nonliving molecules that became able to reproduce themselves is called
A) prehistoric evolution.
B) endosymbiont evolution.
C) natural selection.
D) spontaneous evolution.
E) prebiotic evolution.
E
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The "pill" works primarily by ____
a. blocking sperm from entering the uterus b. causing spontaneous abortions c. inhibiting the release of FSH and LH d. preventing implantation of the embryo e. stimulating the release of GnRH
The main form in which sugars are transported in the phloem sap is ____
a. glucose b. lactose c. starch d. sucrose e. fructose
Which is a general equation that summarizes the light-dependent reactions?
A. excited electrons + H2O + ADP + NADP+ ® ATP + NADPH + O2 B. ATP + NADPH + ribulose + CO2 ® ADP + NADP+ + complex organic molecule + ribulose C. CO2 + ATP + NADH + 5-ribulose ® glyceraldehyde-3-phosphate + NADP+ + ADP + P D. SUN + 6CO2 ® 6H2O + C6H12O6 + 6O2
Erwinia carotovora is a species of bacteria that uses injectisomes to inject proteins into plant cells, ultimately causing tissue rot. E. carotovora is an example of a:
A. mutualist B. decomposer C. producer D. predator E. pathogen